Improvement in welted and covered seams



HELEN A. BLANCHARD.

WELTED AND COVERED SEAMS.

No.174,76%. Patented Ma'rchH, 1876.

E Invezfi'of I N, PEYERS, FHOTGLITNDGRAPHER. WASHINGTON. D Q

I'IED STATES PATENT oF'F eE;

HELEN A. BLAEG AED, 0F BOSTON, MASSACHUSETTS.

IMPROVEMENT lN WELTED AND COVERED S EAMS f Specification forming part ofLetters Patent No. 174,764, dated March 14, 1876; application filedAugust 19, 1875.

To all whom it may concern Be it known that I, HELEN A. BLANOHARD, ofBoston, Massachusetts, have invented an Improved Welt and Covered Seam,of which the following is a specification:

My invention relates to seams of cloth, leather, or any other suitablematerial, made by placing the two edges to be united, the one over theother, as shown in Figure 8 of the accompanying drawings, and thenalternately stitching within and without the edge; afterward flatteningout the seam so that the edges will abut, as shown by D D, Fig. 7.

In sewing leather, cloth, 860., with this scam, where it is subject toconsiderable chafin g or rubbing, it is desirable often to furnishprotection to the parts of the threads exposed on the wearing-surface.This I do in two ways, viz: by the insertion of a piping or welt; bysewing a strip over the seam.

Fig. 10 of the accompanying drawings shows the two pieces tobe united, BBplaced in position for sewing, with thewelt or piping inserted so as toproject ali'ttlebe yond their edges. The sewing is then done on amachine adapted to sew zigzag, or over the edge, as, for instance, isshownin. my Letters Patent No. 161,471, the needle" passing alternatelywithin and without the edges of B B', but each time through the pipingA. Figs. 1 and'2 show the upper and under side of the seam thus madeflattened out. The folded edge of the piping can be made to come on theinside or with the straight threads of the scam, instead of the diamondthread, by reversing its position from that shown in Fig. 10 to thatshown Lil Fig. 9.

If. it is desirable to have the .welt or piping project only on one sideof the seam, and the reverse smooth, it caneasily-be accomplished byplacing the edge of thewelt or piping even with the edges B B,,Fig. 11,and then stitching within and without the edge. This seam,

flattened out, presents the appearance of Fig.

12, also of Figs. 3 and 4, which Show the upper and reverse side of thesame scam, the

I can use a single piece of leather, or any other suitable material,(see Figs. 5 also a cord can be inserted in. the piping, if desirable.

As another method of protecting the ex-' and chafing of the exposedparts of the seam- 7 thread. They are particularly applicable to theseams of shoes, leather mittens, bags, and

heavy woolen goods or canvas. Still, I do not limit them to such.

I do not claim the simple insertion of a piping orwelt in a seam, northe covering of aseam with a strip of suitable material sewed over thesame; but in a seam made by alternately stitching within and withouttheedge of the material sewed, and then flattening the materials out sothat the edges shall abut, as a protection to the exposedsewing-threads. Sometimes I enlarge the size of the piping, and after ithas been stitched in, as before described, and the. seam flattened out,I also flatten out the piping, andstitch its edges down with one or morerows of stitching, by which I obtain the same general result and effectas with the covered seam; with the advantage, however, over the seamthat if the outside stitching wears the strip is so.se-

cured by the overstitching that it will not hang loose. A very goodresult can be obtained with a single row of plain zigzag or other fancystitching on the center of the piping. ()r, again, I can stitch the twoedges. of

the covering-strip, one on each piece to' be seamed, then overseam andflatten out, by

which I have a covered seam and no stitches showing.

I claim and desire to Patent- 1. In combination with a seam made bstitching the superposed edges of the cloth, or other material,alternately within and and 6) secure by Iietters' HELEN A. BLANOHARD.

and zfolithe @purpouesoet fonth.

"2.In leather-sewing, the combination of strips B Bwith a seam madethrough their edges by? stitoh sewed alternately within and without thesame, substantially as and for the ipnppoaosnsetzforth ,Intestimopynhaneof I have hereuuto set In pt-esonco otf WM. LAWRENCEBIGELOW,

